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# vim: set et ts=4 sw=4:
package ManaTools::Shared::disk_backend::Plugin::Disk;
#============================================================= -*-perl-*-
=head1 NAME
ManaTools::Shared::disk_backend::Plugin::Disk - disks object
=head1 SYNOPSIS
use ManaTools::Shared::disk_backend::Plugin::Disk;
my $db_man = ManaTools::Shared::disk_backend::Plugin::Disk->new($parent);
...
=head1 DESCRIPTION
This plugin is a disk plugin for the backend to manadisk
=head1 SUPPORT
You can find documentation for this plugin with the perldoc command:
perldoc ManaTools::Shared::disk_backend::Plugin::Disk
=head1 AUTHOR
Maarten Vanraes <alien@rmail.be>
=head1 COPYRIGHT and LICENSE
Copyright (c) 2015 Maarten Vanraes <alien@rmail.be>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2, as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
=head1 METHODS
=cut
use Moose;
use File::Basename;
use ManaTools::Shared::disk_backend::Part;
extends 'ManaTools::Shared::disk_backend::Plugin';
#=============================================================
=head2 probe
=head3 OUTPUT
0 if failed, 1 if success
=head3 DESCRIPTION
this method will call probe for all plugins and merge results of the probe
=cut
#=============================================================
override ('probe', sub {
my $self = shift;
my $part = undef;
my $err = 0;
my @parts = $self->parent->findpart('Disks');
if (scalar(@parts) > 0) {
$part = $parts[0];
}
else {
$part = $self->parent->mkpart('Disks', {plugin => $self});
if (!defined($part)) {
return 0;
}
}
for my $dfile (glob("/sys/bus/scsi/devices/[0-9]*")) {
for my $bdfile (glob($dfile ."/block/*")) {
# try or create child as a disk
my $p = $part->trychild(ManaTools::Shared::disk_backend::Part->CurrentState, sub {
my $part = shift;
my $parameters = shift;
return ($part->devicepath() =~ s'^.+/''r eq $parameters->{devicepath} =~ s'^.+/''r);
}, 'Disk', {plugin => $self, devicepath => $bdfile, loaded => undef, saved => undef});
# trigger the changedpart
$p->changedpart(ManaTools::Shared::disk_backend::Part->CurrentState);
}
}
return $err == 0;
});
package ManaTools::Shared::disk_backend::Part::Disks;
use Moose;
extends 'ManaTools::Shared::disk_backend::Part';
use MooseX::ClassAttribute;
class_has '+type' => (
default => 'Disks'
);
class_has '+restrictions' => (
default => sub {
return {
child => sub {
my $self = shift;
my $part = shift;
return $part->isa('ManaTools::Shared::disk_backend::Part::Disk');
},
parent => sub {
return 0;
},
sibling => sub {
return 0;
},
}
}
);
override('label', sub {
my $self = shift;
my $label = super;
if ($self->out_length() < 1) {
return $label;
}
return $label .'('. join(',', sort map { $_->label(); } @children) .')';
});
package ManaTools::Shared::disk_backend::Part::Disk;
use Moose;
extends 'ManaTools::Shared::disk_backend::Part';
use MooseX::ClassAttribute;
with 'ManaTools::Shared::disk_backend::BlockDevice';
class_has '+type' => (
default => 'Disk'
);
has '+devicepath' => (
trigger => sub {
my $self = shift;
my $value = shift;
$self->prop_from_file('ro', $value .'/ro');
$self->prop_from_file('removable', $value .'/removable');
$self->prop_from_file('size', $value .'/size');
$self->prop('present', ($self->prop('removable') == 0 || $self->prop('size') > 0) ? 1 : 0);
$self->prop_from_file('dev', $value .'/dev');
$self->sync_majorminor();
# additional data
my $dpath = $value =~ s,/[^/]+/[^/]+$,,r;
$self->prop_from_file('vendor', $dpath .'/vendor');
$self->prop_from_file('model', $dpath .'/model');
$self->prop_from_file('type', $dpath .'/type');
}
);
class_has '+order' => (
default => sub {
sub {
my $self = shift;
my $part = shift;
return ($self->devicepath() =~ s'^.+/''r cmp $part->devicepath() =~ s'^.+/''r);
}
}
);
class_has '+restrictions' => (
default => sub {
return {
sibling => sub {
my $self = shift;
my $part = shift;
return $part->isa('ManaTools::Shared::disk_backend::Part::Disk');
},
previous => sub {
my $self = shift;
my $part = shift;
return $part->isa('ManaTools::Shared::disk_backend::Part::Disk');
},
next => sub {
my $self = shift;
my $part = shift;
return $part->isa('ManaTools::Shared::disk_backend::Part::Disk');
},
}
}
);
1;
|
